Porter&#39;s truck



A. C. M HAFFIE PORTER S TRUCK Fi1ed June 22, 1928 A TTORIl/EY Patented June 24, 1930 7 7 f I h ALECC. MCI-IAFFIE, or BROOKLYN, NEW YORK I PORTERS TRUCK Application filed June 22, 1928, Serial No. 287,418, and. in Great Britain October 12, 1927.

The object of this invention is to provide thus a unitary structure, I with consequent a truck suitable for moving about trunks, strength and lightness, and its strength is boxes and the like, which shall be inexpen-v preferably increased by fluting it,'a's at- 2, sive to manufacture and'yet light, strong lengthwise of and in each of itswalls. V and'durable and which may be used either Each angle member 8 is formed from a Withor without a handle. generally triangular piece or plate of sheet According to the invention the'body of metal having-"a crotch or entrant angle 3 the truck comprises three members, to wit, (Fig. conforming" to the angle of the a pair of angle members and a cross-seccross-sec'tion'of member 1. It is given aug lotionally angular bridge member, the latter mented strength by bending of its edge all member being seated in the angles or' around in one direction so, as to fornrprefcrotches of both angle members so that its erably an endless flange;that portion '3 of two walls are respectively supported by the such flange which conforms with the angle" arms of said angle members and said bridge 3 is wider, preferably, than the remaining v15 member being secured to both angle memportion 3 of said flange. I

bers, preferably to both arms 0f each. The The body of the truck'is assembled by 7 angle members may be equipped with'any l seating the bridge member in the crotches 3 runner -means, as will hereinafter appear. of the angle members, with its two walls In the best form the inexpensiveness with respectively in face to face contact with its 0 lightnessand strength and durability are resulti-ngarms, specifically with the wider increased by forming each of these three portionsB of the flanges of said anglememmembers of a single piece of sheet metal, bers and, suitable mating holes bein g prothe bridge member by "bending a sheet into vided for the'purpose, riveting the bridge cross-sectionally angular form and by flutmember and angle members together as indi- 25 ing' its walls and the angle members by Gated at'tf The resultant structure is an stamping the same from triangular sheet exceedingly strong yet comparativelylight metal blanks so as to leave marginal flanges body. Y r thereon. Where the runner means takes the The apical portion or leg?) of each angle form of an axle with wheels thereon the axle member is preferably rounded and it a 30 (a bar of metal) is removably mounted in hole 3 therein. Usually the riinnerineans and secured against endwise displacement to ofthe truck' will comprise a pair of wheels two bushings which are fitted into and prefand an axial support for them which will erably permanently secured in holes inthe pass through and thus itself besupported in angle members and abut them. said holes 3 The wheels maybe of any 5 In the drawing, type, but those shown are annuli-5 of rubber .Fi 1 is a side elevationof the truck, with I or other yielding material each held between certain parts in section; two metal'disks 6 by rivets 7 andhaving a Fig. 2 is afrontelevation, with certain metal tubular core or hub 8. Said" axial parts in section; portion here comprises the metal bar or axle Fig. 3 is an inside elevation of one of the 9 and the bushings 10 in which the axle is angle members; V removably secured by cot-terpins 11. Each Fig. 4-. a section thereof on line 1-4, bushing is arranged inwardly of an angle F ig. 3; i member and has its outer end reduced and Fig. 5 a plan of one of'the bushings; and fitting and preferably welded in the hole 3 f 5 F i 6 a section of the brid e member on thereof. Thus there results an axial support i g I 2:; .L

line 6-6, Fig. 2. I r p on which the wheels in the example revolve The bridge member 1 is formed from a while said support remains fixed with respect rectangular sheet ofhmetal bent on a line to the body,though the actual bearing-formparallel with and between two of its sides, ing part or axle thereof is removable; and 50 in the present case to a right angle. It is in this specific construction each bushing affords an elongated rigid support for the axle, such as it would not have if it passed directly through the holes 3 The axle 9 V protrudes at each end through the angle members'and on its protruding ends the Wheelsare journaled, being interposed be tween Washers 12 and'retained in place by, pins 13 in the'axle. i

' Usually a handlel, which may b v;

ably bolted, as at 15, to one Wall of the bridge member, will be provided. But in "many instances, as is known, as in shifting boxes and other rectangular loads about,'the

handle may be omitted.

Regardless of those details which inanifestly contribute to strength and durability,

While permitting the truck to be constructed 7 so asto be light inm'ehght, such strength and durability, with lightness, are prlnciipally due to providing abody structure coniprlsinga pair of spaced carrier members, as

38, each having 'angularlygrelated arms,

and a' bridging member, as 1, consisting of a metal plate bridging said members and bent on a 11118 crossing them and, secured to them with the. outer "faces of the portions thereof. on both sides of the line offbend respectively bearing agalnstthearms of each i such" member. in

arms and "formodof a iSlIl lG )iece of sheet 7 metal and With-a flange projecting substan tially at right angles'to the plane of, such piece and along theinner edge of each arm, and abridge member consisting of a metal plate bridging said carrier members and 1 bent on a l ne crossing them and secured'to said flanges With the outerfaces of the portions thereof on-bothsides of the line of bend respectively bear ng against the flanges of each such member. 7

In testimony. whereof I aflix my signature.

' ALEG o. MCHAFFIE- 

